PDB Short entry for 2AOW
HEADER    TRANSFERASE                             14-AUG-05   2AOW              
TITLE     HISTAMINE METHYLTRANSFERASE (NATURAL VARIANT I105) COMPLEXED WITH THE 
TITLE    2 ACETYLCHOLINESTERASE INHIBITOR AND ALTZHEIMER'S DISEASE DRUG TACRINE 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HISTAMINE N-METHYLTRANSFERASE;                             
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: HISTAMINE METHYLTRANSFERASE;                               
COMPND   5 SYNONYM: HMT;                                                        
COMPND   6 EC: 2.1.1.8;                                                         
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: HNMT;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: DH5A;                                      
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PGEX-4T-3                                 
KEYWDS    CLASSIC METHYLTRANSFERASE FOLD, PROTEIN-DRUG COMPLEX, TRANSFERASE     
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.R.HORTON,K.SAWADA,M.NISHIBORI,X.CHENG                               
REVDAT   5   23-AUG-23 2AOW    1       REMARK                                   
REVDAT   4   20-OCT-21 2AOW    1       REMARK SEQADV                            
REVDAT   3   24-FEB-09 2AOW    1       VERSN                                    
REVDAT   2   18-OCT-05 2AOW    1       JRNL                                     
REVDAT   1   13-SEP-05 2AOW    0                                                
JRNL        AUTH   J.R.HORTON,K.SAWADA,M.NISHIBORI,X.CHENG                      
JRNL        TITL   STRUCTURAL BASIS FOR INHIBITION OF HISTAMINE                 
JRNL        TITL 2 N-METHYLTRANSFERASE BY DIVERSE DRUGS                         
JRNL        REF    J.MOL.BIOL.                   V. 353   334 2005              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   16168438                                                     
JRNL        DOI    10.1016/J.JMB.2005.08.040                                    
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   J.R.HORTON,K.SAWADA,M.NISHIBORI,X.ZHANG,X.CHENG              
REMARK   1  TITL   POLYMORPHIC FORMS OF HUMAN HISTAMINE METHYLTRANSFERASE:      
REMARK   1  TITL 2 STRUCTURAL, THERMAL, AND KINETIC COMPARISONS                 
REMARK   1  REF    STRUCTURE                     V.   9   837 2001              
REMARK   1  REFN                   ISSN 0969-2126                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.97 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.97                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 28.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 13241                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.219                           
REMARK   3   FREE R VALUE                     : 0.269                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 650                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.97                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 3.04                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3110                       
REMARK   3   BIN FREE R VALUE                    : 0.3560                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 35                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.044                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4440                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 30                                      
REMARK   3   SOLVENT ATOMS            : 25                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 39.70                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -1.76000                                             
REMARK   3    B22 (A**2) : -1.76000                                             
REMARK   3    B33 (A**2) : 3.52000                                              
REMARK   3    B12 (A**2) : 3.26000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.38                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.35                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 28.0                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.47                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.41                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.012                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.400                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 23.20                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.800                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : NULL                                                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 2AOW COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-SEP-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000034145.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 18-APR-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 173                                
REMARK 200  PH                             : 6.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X26C                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.1                                
REMARK 200  MONOCHROMATOR                  : SI(111) DOUBLE-CRYSTAL             
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 13697                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.970                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 28.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.1                               
REMARK 200  DATA REDUNDANCY                : 4.400                              
REMARK 200  R MERGE                    (I) : 0.08800                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 13.1000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.97                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.04                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.8                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.21300                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: GLRF                                                  
REMARK 200 STARTING MODEL: PDB ENTRY 1JQD                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 52.40                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.58                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 6000, MES, ETHYLENEGLYCOL, PH 6.0,   
REMARK 280  VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 289K                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 6                              
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   -X,-Y,Z                                                 
REMARK 290       5555   Y,-X+Y,Z                                                
REMARK 290       6555   X-Y,X,Z                                                 
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     ALA A     2                                                      
REMARK 465     SER A     3                                                      
REMARK 465     SER A     4                                                      
REMARK 465     MET B     1                                                      
REMARK 465     ALA B     2                                                      
REMARK 465     SER B     3                                                      
REMARK 465     SER B     4                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     ARG A   6    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     PHE A   9    CG   CD1  CD2  CE1  CE2  CZ                         
REMARK 470     LYS A  14    CG   CD   CE   NZ                                   
REMARK 470     ARG A  20    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ARG A  21    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLU A  93    CG   CD   OE1  OE2                                  
REMARK 470     SER A 106    OG                                                  
REMARK 470     ASN A 107    CB   CG   OD1  ND2                                  
REMARK 470     GLU A 109    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 112    CG   CD   CE   NZ                                   
REMARK 470     LYS A 131    CG   CD   CE   NZ                                   
REMARK 470     GLU A 132    CG   CD   OE1  OE2                                  
REMARK 470     GLN A 134    CG   CD   OE1  NE2                                  
REMARK 470     GLN A 192    CG   CD   OE1  NE2                                  
REMARK 470     LYS A 214    CG   CD   CE   NZ                                   
REMARK 470     THR A 253    OG1  CG2                                            
REMARK 470     ASP A 257    CG   OD1  OD2                                       
REMARK 470     LYS A 264    CG   CD   CE   NZ                                   
REMARK 470     GLN A 267    CG   CD   OE1  NE2                                  
REMARK 470     LYS A 274    CG   CD   CE   NZ                                   
REMARK 470     LYS A 275    CG   CD   CE   NZ                                   
REMARK 470     GLU A 276    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 278    CG   CD   CE   NZ                                   
REMARK 470     ARG B   6    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     PHE B   9    CG   CD1  CD2  CE1  CE2  CZ                         
REMARK 470     LYS B  14    CG   CD   CE   NZ                                   
REMARK 470     ARG B  20    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ARG B  21    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLU B  93    CG   CD   OE1  OE2                                  
REMARK 470     SER B 106    OG                                                  
REMARK 470     ASN B 107    CB   CG   OD1  ND2                                  
REMARK 470     GLU B 109    CG   CD   OE1  OE2                                  
REMARK 470     LYS B 112    CG   CD   CE   NZ                                   
REMARK 470     LYS B 131    CG   CD   CE   NZ                                   
REMARK 470     GLU B 132    CG   CD   OE1  OE2                                  
REMARK 470     GLN B 134    CG   CD   OE1  NE2                                  
REMARK 470     GLN B 192    CG   CD   OE1  NE2                                  
REMARK 470     LYS B 214    CG   CD   CE   NZ                                   
REMARK 470     THR B 253    OG1  CG2                                            
REMARK 470     ASP B 257    CG   OD1  OD2                                       
REMARK 470     LYS B 264    CG   CD   CE   NZ                                   
REMARK 470     GLN B 267    CG   CD   OE1  NE2                                  
REMARK 470     LYS B 274    CG   CD   CE   NZ                                   
REMARK 470     LYS B 275    CG   CD   CE   NZ                                   
REMARK 470     GLU B 276    CG   CD   OE1  OE2                                  
REMARK 470     LYS B 278    CG   CD   CE   NZ                                   
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    HIS A  12      -47.96    -23.69                                   
REMARK 500    ASP A  49      122.91    -34.98                                   
REMARK 500    ALA A  63       47.23   -106.00                                   
REMARK 500    ASN A 107       95.13    106.83                                   
REMARK 500    LEU A 108        5.52   -160.66                                   
REMARK 500    GLU A 109      -34.12    -28.31                                   
REMARK 500    SER A 176       59.94   -115.20                                   
REMARK 500    ASP A 180      -72.14    -52.80                                   
REMARK 500    SER A 188       -0.09    -54.88                                   
REMARK 500    ILE A 226       50.69   -109.45                                   
REMARK 500    ASP A 232      136.61    -32.51                                   
REMARK 500    ASN A 234      140.05    -33.66                                   
REMARK 500    ASN A 249       73.60     42.55                                   
REMARK 500    ASN A 251      -72.97    -54.93                                   
REMARK 500    ALA A 252       13.74    -63.00                                   
REMARK 500    THR A 253       12.55   -143.76                                   
REMARK 500    GLU A 276      101.98    -51.88                                   
REMARK 500    HIS B  12      -48.53    -23.24                                   
REMARK 500    ASP B  49      122.98    -35.78                                   
REMARK 500    ALA B  63       48.80   -105.98                                   
REMARK 500    ASN B 107       75.33    113.72                                   
REMARK 500    GLU B 109      -36.85    -26.22                                   
REMARK 500    SER B 176       60.34   -116.08                                   
REMARK 500    ASP B 180      -74.91    -50.42                                   
REMARK 500    SER B 188       -0.70    -53.81                                   
REMARK 500    ILE B 226       52.21   -109.35                                   
REMARK 500    ASP B 232      136.31    -33.75                                   
REMARK 500    ASN B 234      139.75    -33.72                                   
REMARK 500    ASN B 249       72.35     42.46                                   
REMARK 500    ASN B 251      -70.12    -55.22                                   
REMARK 500    ALA B 252       14.94    -65.54                                   
REMARK 500    THR B 253       12.19   -144.80                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE THA A 400                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE THA B 401                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1JQD   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE ANALYSIS OF HUMAN HISTAMINE METHYLTRANSFERASE      
REMARK 900 (THR105 POLYMORPHIC VARIANT) COMPLEXED WITH ADOHCY AND HISTAMINE     
REMARK 900 RELATED ID: 1JQE   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE ANALYSIS OF HUMAN HISTAMINE METHYLTRANSFERASE      
REMARK 900 (ILE105 POLYMORPHIC VARIANT) COMPLEXED WITH ADOHCY AND ANTIMALARIAL  
REMARK 900 DRUG QUINACRINE                                                      
REMARK 900 RELATED ID: 2AOT   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2AOU   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2AOV   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2AOX   RELATED DB: PDB                                   
DBREF  2AOW A    1   292  UNP    P50135   HNMT_HUMAN       1    292             
DBREF  2AOW B    1   292  UNP    P50135   HNMT_HUMAN       1    292             
SEQADV 2AOW ILE A  105  UNP  P50135    THR   105 ENGINEERED MUTATION            
SEQADV 2AOW ILE B  105  UNP  P50135    THR   105 ENGINEERED MUTATION            
SEQRES   1 A  292  MET ALA SER SER MET ARG SER LEU PHE SER ASP HIS GLY          
SEQRES   2 A  292  LYS TYR VAL GLU SER PHE ARG ARG PHE LEU ASN HIS SER          
SEQRES   3 A  292  THR GLU HIS GLN CYS MET GLN GLU PHE MET ASP LYS LYS          
SEQRES   4 A  292  LEU PRO GLY ILE ILE GLY ARG ILE GLY ASP THR LYS SER          
SEQRES   5 A  292  GLU ILE LYS ILE LEU SER ILE GLY GLY GLY ALA GLY GLU          
SEQRES   6 A  292  ILE ASP LEU GLN ILE LEU SER LYS VAL GLN ALA GLN TYR          
SEQRES   7 A  292  PRO GLY VAL CYS ILE ASN ASN GLU VAL VAL GLU PRO SER          
SEQRES   8 A  292  ALA GLU GLN ILE ALA LYS TYR LYS GLU LEU VAL ALA LYS          
SEQRES   9 A  292  ILE SER ASN LEU GLU ASN VAL LYS PHE ALA TRP HIS LYS          
SEQRES  10 A  292  GLU THR SER SER GLU TYR GLN SER ARG MET LEU GLU LYS          
SEQRES  11 A  292  LYS GLU LEU GLN LYS TRP ASP PHE ILE HIS MET ILE GLN          
SEQRES  12 A  292  MET LEU TYR TYR VAL LYS ASP ILE PRO ALA THR LEU LYS          
SEQRES  13 A  292  PHE PHE HIS SER LEU LEU GLY THR ASN ALA LYS MET LEU          
SEQRES  14 A  292  ILE ILE VAL VAL SER GLY SER SER GLY TRP ASP LYS LEU          
SEQRES  15 A  292  TRP LYS LYS TYR GLY SER ARG PHE PRO GLN ASP ASP LEU          
SEQRES  16 A  292  CYS GLN TYR ILE THR SER ASP ASP LEU THR GLN MET LEU          
SEQRES  17 A  292  ASP ASN LEU GLY LEU LYS TYR GLU CYS TYR ASP LEU LEU          
SEQRES  18 A  292  SER THR MET ASP ILE SER ASP CYS PHE ILE ASP GLY ASN          
SEQRES  19 A  292  GLU ASN GLY ASP LEU LEU TRP ASP PHE LEU THR GLU THR          
SEQRES  20 A  292  CYS ASN PHE ASN ALA THR ALA PRO PRO ASP LEU ARG ALA          
SEQRES  21 A  292  GLU LEU GLY LYS ASP LEU GLN GLU PRO GLU PHE SER ALA          
SEQRES  22 A  292  LYS LYS GLU GLY LYS VAL LEU PHE ASN ASN THR LEU SER          
SEQRES  23 A  292  PHE ILE VAL ILE GLU ALA                                      
SEQRES   1 B  292  MET ALA SER SER MET ARG SER LEU PHE SER ASP HIS GLY          
SEQRES   2 B  292  LYS TYR VAL GLU SER PHE ARG ARG PHE LEU ASN HIS SER          
SEQRES   3 B  292  THR GLU HIS GLN CYS MET GLN GLU PHE MET ASP LYS LYS          
SEQRES   4 B  292  LEU PRO GLY ILE ILE GLY ARG ILE GLY ASP THR LYS SER          
SEQRES   5 B  292  GLU ILE LYS ILE LEU SER ILE GLY GLY GLY ALA GLY GLU          
SEQRES   6 B  292  ILE ASP LEU GLN ILE LEU SER LYS VAL GLN ALA GLN TYR          
SEQRES   7 B  292  PRO GLY VAL CYS ILE ASN ASN GLU VAL VAL GLU PRO SER          
SEQRES   8 B  292  ALA GLU GLN ILE ALA LYS TYR LYS GLU LEU VAL ALA LYS          
SEQRES   9 B  292  ILE SER ASN LEU GLU ASN VAL LYS PHE ALA TRP HIS LYS          
SEQRES  10 B  292  GLU THR SER SER GLU TYR GLN SER ARG MET LEU GLU LYS          
SEQRES  11 B  292  LYS GLU LEU GLN LYS TRP ASP PHE ILE HIS MET ILE GLN          
SEQRES  12 B  292  MET LEU TYR TYR VAL LYS ASP ILE PRO ALA THR LEU LYS          
SEQRES  13 B  292  PHE PHE HIS SER LEU LEU GLY THR ASN ALA LYS MET LEU          
SEQRES  14 B  292  ILE ILE VAL VAL SER GLY SER SER GLY TRP ASP LYS LEU          
SEQRES  15 B  292  TRP LYS LYS TYR GLY SER ARG PHE PRO GLN ASP ASP LEU          
SEQRES  16 B  292  CYS GLN TYR ILE THR SER ASP ASP LEU THR GLN MET LEU          
SEQRES  17 B  292  ASP ASN LEU GLY LEU LYS TYR GLU CYS TYR ASP LEU LEU          
SEQRES  18 B  292  SER THR MET ASP ILE SER ASP CYS PHE ILE ASP GLY ASN          
SEQRES  19 B  292  GLU ASN GLY ASP LEU LEU TRP ASP PHE LEU THR GLU THR          
SEQRES  20 B  292  CYS ASN PHE ASN ALA THR ALA PRO PRO ASP LEU ARG ALA          
SEQRES  21 B  292  GLU LEU GLY LYS ASP LEU GLN GLU PRO GLU PHE SER ALA          
SEQRES  22 B  292  LYS LYS GLU GLY LYS VAL LEU PHE ASN ASN THR LEU SER          
SEQRES  23 B  292  PHE ILE VAL ILE GLU ALA                                      
HET    THA  A 400      15                                                       
HET    THA  B 401      15                                                       
HETNAM     THA TACRINE                                                          
FORMUL   3  THA    2(C13 H14 N2)                                                
FORMUL   5  HOH   *25(H2 O)                                                     
HELIX    1   1 SER A    7  SER A   10  5                                   4    
HELIX    2   2 ASP A   11  ASN A   24  1                                  14    
HELIX    3   3 THR A   27  LYS A   39  1                                  13    
HELIX    4   4 LYS A   39  ILE A   44  1                                   6    
HELIX    5   5 GLY A   45  ILE A   47  5                                   3    
HELIX    6   6 ALA A   63  TYR A   78  1                                  16    
HELIX    7   7 SER A   91  LYS A  104  1                                  14    
HELIX    8   8 THR A  119  LYS A  130  1                                  12    
HELIX    9   9 MET A  144  VAL A  148  5                                   5    
HELIX   10  10 ASP A  150  SER A  160  1                                  11    
HELIX   11  11 SER A  177  GLY A  187  1                                  11    
HELIX   12  12 SER A  188  PHE A  190  5                                   3    
HELIX   13  13 THR A  200  GLY A  212  1                                  13    
HELIX   14  14 SER A  227  ILE A  231  5                                   5    
HELIX   15  15 GLU A  235  THR A  245  1                                  11    
HELIX   16  16 PHE A  250  ALA A  254  5                                   5    
HELIX   17  17 PRO A  255  GLN A  267  1                                  13    
HELIX   18  18 SER B    7  SER B   10  5                                   4    
HELIX   19  19 ASP B   11  ASN B   24  1                                  14    
HELIX   20  20 THR B   27  LYS B   39  1                                  13    
HELIX   21  21 LYS B   39  ILE B   44  1                                   6    
HELIX   22  22 GLY B   45  ILE B   47  5                                   3    
HELIX   23  23 ALA B   63  TYR B   78  1                                  16    
HELIX   24  24 SER B   91  LYS B  104  1                                  14    
HELIX   25  25 THR B  119  LYS B  130  1                                  12    
HELIX   26  26 MET B  144  VAL B  148  5                                   5    
HELIX   27  27 ASP B  150  SER B  160  1                                  11    
HELIX   28  28 SER B  177  GLY B  187  1                                  11    
HELIX   29  29 SER B  188  PHE B  190  5                                   3    
HELIX   30  30 THR B  200  GLY B  212  1                                  13    
HELIX   31  31 SER B  227  ILE B  231  5                                   5    
HELIX   32  32 GLU B  235  THR B  245  1                                  11    
HELIX   33  33 PHE B  250  ALA B  254  5                                   5    
HELIX   34  34 PRO B  255  GLN B  267  1                                  13    
SHEET    1   A 7 VAL A 111  HIS A 116  0                                        
SHEET    2   A 7 ILE A  83  VAL A  88  1  N  VAL A  87   O  ALA A 114           
SHEET    3   A 7 ILE A  54  ILE A  59  1  N  ILE A  56   O  ASN A  84           
SHEET    4   A 7 TRP A 136  ILE A 142  1  O  PHE A 138   N  LEU A  57           
SHEET    5   A 7 LEU A 162  VAL A 173  1  O  GLY A 163   N  TRP A 136           
SHEET    6   A 7 LEU A 285  GLU A 291 -1  O  ILE A 288   N  ILE A 170           
SHEET    7   A 7 TYR A 215  LEU A 220 -1  N  TYR A 218   O  PHE A 287           
SHEET    1   B 3 THR A 223  ASP A 225  0                                        
SHEET    2   B 3 VAL A 279  ASN A 282 -1  O  PHE A 281   N  MET A 224           
SHEET    3   B 3 SER A 272  LYS A 274 -1  N  ALA A 273   O  LEU A 280           
SHEET    1   C 7 VAL B 111  HIS B 116  0                                        
SHEET    2   C 7 CYS B  82  VAL B  88  1  N  ILE B  83   O  LYS B 112           
SHEET    3   C 7 GLU B  53  ILE B  59  1  N  SER B  58   O  GLU B  86           
SHEET    4   C 7 TRP B 136  ILE B 142  1  O  PHE B 138   N  LEU B  57           
SHEET    5   C 7 LEU B 162  VAL B 173  1  O  GLY B 163   N  TRP B 136           
SHEET    6   C 7 LEU B 285  GLU B 291 -1  O  ILE B 288   N  ILE B 170           
SHEET    7   C 7 TYR B 215  LEU B 220 -1  N  TYR B 218   O  PHE B 287           
SHEET    1   D 3 THR B 223  ASP B 225  0                                        
SHEET    2   D 3 LYS B 278  ASN B 282 -1  O  PHE B 281   N  MET B 224           
SHEET    3   D 3 SER B 272  LYS B 275 -1  N  ALA B 273   O  LEU B 280           
SITE     1 AC1  8 PHE A  22  GLU A  28  GLN A 143  TYR A 147                    
SITE     2 AC1  8 TRP A 179  TRP A 183  GLU A 246  HOH A 408                    
SITE     1 AC2  9 PHE B  22  GLU B  28  GLN B 143  TYR B 146                    
SITE     2 AC2  9 TYR B 147  TRP B 179  TRP B 183  CYS B 196                    
SITE     3 AC2  9 GLU B 246                                                     
CRYST1  132.960  132.960   65.210  90.00  90.00 120.00 P 6          12          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.007521  0.004342  0.000000        0.00000                         
SCALE2      0.000000  0.008684  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015335        0.00000